Acetylene absorption and binding in a nonporous crystal lattice

<p>Unusual storage: An organic nonporous material, p-tert-butylcalix[4]arene, sorbs acetylene with high storage density under ambient conditions. It is presumed that gas molecules diffuse through the seemingly nonporous lattice without disrupting the arrangement of the host molecules (see picture; red O, blue C, gray H, yellow void space). (Figure Presented) © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.</p>